TABLE 1

Percentage of reporter lines carrying any of three different transposons showing repression of white gene expression in response to ZnF-PcG fusion proteins

ZnFZnF-PCZnF-SCMZnF-SCMΔSPMZnF-ESC
SUPorP-lt
    Euchromatic0 (0/6)100 (6/6)100 (5/5)0 (0/5)20 (1/5)
    Telomeric0 (0/1)100 (1/1)100 (1/1)0 (0/1)100 (1/1)
SUPorP
    Euchromatic0 (0/14)92 (12/13)69 (9/13)0 (0/8)23 (3/13)
    Euchromatic P.E.a0 (0/2)100 (1/1)100 (2/2)0 (0/1)100 (2/2)
    Telomeric0 (0/6)100 (6/6)100 (6/6)0 (0/3)84 (5/6)
    Centric, 4th0 (0/4)100 (3/3)100 (4/4)0 (0/1)50 (2/4)
SUPorP-blk
    Euchromatic0 (0/6)100 (5/5)100 (6/6)0 (0/4)50 (3/6)
    Euchromatic P.E.0 (0/1)100 (1/1)100 (1/1)0 (0/1)100 (1/1)
  • Values in parentheses indicate the number of lines showing repression out of the total number of lines studied.

  • a P.E., position effects, transposons inserted in genomic locations that have a negative effect on gene expression.